There's A Reason They're Called Unmentionables
Mariana learns the hard way why you should keep your drawers to yourself.
Last week's episode of The Fosters found Mariana taking some pretty terrible flirting advice: I mean, if you're the kind of person who can pull off (no pun intended) slipping your gitch into a target's pocket, you're not the kind of person who has to have it suggested to you; and it's not really a smart move to open with (no pun intended) if you're not prepared to pay it off with actual sex. That's not to say anyone is required to close the deal and that you can change your mind at any time, but like, panties-in-pocket is kind of a power move; a teenaged boy is going to be annoyed if you don't follow through; and there will be consequences. Embarrassing ones. Real embarrassing ones.
Mariana's journey into public humiliations begins out on the quad, as she notices a guy giving her the eye and then, once he's passed her, sees why.
Confronting Chase does not bring Mariana any satisfaction, because of course he denies it.
And just in time for Mariana to let herself be buck-up-little-campered by Callie and her (generally sound) argument that the opinions of high school jerks are not important, this occurs.
The opinions of your classmates might not matter, but when your mom works at the school and might come around the corner just as you're gathering up your pile of free granny panties (and at least one pair of boy's briefs) to stuff them in the garbage...you're going to have to have a conversation about why this bounty was bestowed upon you...
...and the embarrassment of that will be mortifying to a degree your young male classmates could never conceive of.